Aqueous cationic electrodeposition of epoxy resins having quaternary groups carrying blocked NCO

摘要

Resinous vehicles suitable for use in cationic electrodeposition are disclosed. The vehicles comprise the reaction product of any epoxy-containing organic material and an organic tertiary amine acid salt or sulfide-acid mixture; the amine and the sulfide containing blocked isocyanate groups capable of unblocking at elevated temperatures to cure the resinous vehicle.